Nikto Vulnerability Scan (Log Examples + Threat Detection)
See real Nikto scanner user-agents in your access logs. Learn how to detect automated reconnaissance instantly and block scanners before exploitation begins.
Log Signature Detected: If you're seeing "GET /phpinfo.php HTTP/1.1" 404 "-" "Nikto/2.1.6"..." in your logs, your server may be under a Vulnerability Scan attack.
Real Log Example
GET /phpinfo.php HTTP/1.1" 404 "-" "Nikto/2.1.6"
GET /wp-config.php.save HTTP/1.1" 404 "-" "Nikto/2.1.6"
GET /.git/config HTTP/1.1" 403 "-" "Nikto/2.1.6"Think your server is currently experiencing a Vulnerability Scan?
Don't guess. Paste your actual server logs into our Neural Engine to instantly verify if this attack is active.
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What Is a Vulnerability Scan?
Security analysts and DevOps teams monitoring infrastructure like Nginx, Apache HTTP Server, Node.js, AWS, and WordPress must be able to quickly identify and triage these malicious log patterns to prevent data breaches.
Nikto is a vulnerability scanner used to identify outdated software, exposed files, and misconfigurations on web servers.
This log indicates that someone is actively scanning your server for known weaknesses like phpinfo.php or backup files. This is identical behavior to multiple 404 request attack logs, but executed by a specific, known tool.
While a scan alone is not an attack, it is often the first step before exploitation attempts.
How to Detect Nikto Vulnerability Scan (Log Examples + Threat Detection) in Logs
The Signature: The most obvious indicator is the explicit declaration of 'Nikto' within the HTTP User-Agent string.
Frequency: Nikto generates immense noise. You will see hundreds of requests per minute targeting specific, known vulnerable file paths (.bak, .old, .save).
Response Codes: Expect a massive spike in 404 Not Found errors as the scanner blindly checks for thousands of common files.
Vulnerability Scan Attack Detection Checklist
| Pattern | Indicator | Severity |
|---|---|---|
| Nikto in User-Agent string | Known vulnerability scanner | High |
| Rapid 404s to .bak/.old/.save files | Backup file reconnaissance | Medium |
| Requests to /.git/config | Source code repository exposure | Critical |
How to Defend Against This Threat
Remove or restrict access to sensitive files like phpinfo.php.
Keep your server and software updated.
Use a firewall to block known scanning tools.
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